▎ 摘　　要

NOVELTY - A graphene by liquid phase catalytic growth is prepared by dissolving sucrose in deionized water to prepare 10-100 mg/mL solution, stirring and dissolving, heating and stirring at 150-200 degrees C for 1-2 hours, obtaining uniform yellow liquid, mixing with 0-3:1 volume ratio of alcohol and deionized mixed solvent to prepare 200-500 mg/mL graphene quantum dot solution, adding iodine solution according to mass ratio of 0.1-5:100, utilizing as crystal nucleus, stirring, and obtaining graphene solution. USE - Method for preparing graphene by liquid phase catalytic growth. ADVANTAGE - The method is suitable for industrialization. The product is suitable for energy storage batteries.